Dtc P0011 / P0012: Camshaft Position - Timing Over-Advanced Or System Performance / -Retarded (For M16 Engine) - Suzuki Grand Vitara 2011 Manual

Step
8 Oil control valve electrical circuit check
1) Disconnect connector from oil control valve with ignition
switch turned OFF.
2) Measure resistance between "C37-60" terminal of ECM
connector and "BRN/WHT" wire terminal of oil control
valve connector and between "C37-59" terminal of ECM
connector and "BRN/YEL" wire terminal of oil control
valve connector.
Is resistance below 1
9 Oil control valve check
Check oil control valve referring to "Oil Control Valve
Inspection: For M16A Engine with VVT in Section 1D".
Is resistance within specified value?
DTC P0011 / P0012: Camshaft Position - Timing Over-Advanced or System Performance / -Retarded
(For M16 Engine)
System Description
Actual value of advanced valve timing does not reach target value.
Valve timing is advanced although ECM command is most retarding.
DTC Detecting Condition and Trouble Area
DTC detecting condition
Actual advanced valve timing is less than 2.1° crank angle
for more than 13 sec even though target advanced valve
timing is more than 5.6° crank angle with acceleration for
more than 30 sec at engine speed more than 1600 rpm.
or
Actual valve timing is advanced more than 11.25° crank
angle although ECM command is retarding.
(2 driving cycle detection logic)
DTC Confirmation Procedure
WARNING
!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out by 2 persons, a driver and tester, on a level road.
NOTE
Check to make sure that the following conditions are satisfied when using this "DTC Confirmation
Procedure".
• altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more)
Engine General Information and Diagnosis: For Petrol Engine Model 1A-68
Action
Ω
?
Yes
Go to Step 9.
Substitute a known-
good ECM and recheck.
Trouble area
• Oil control valve
• Oil galleries of timing sprocket
• Intake camshaft timing sprocket (Camshaft position
control (VVT) actuator)
• Oil control valve circuit
• ECM
No
"BRN/WHT" wire or
"BRN/YEL" wire circuit
is open or high
resistance.
Faulty oil control valve.
S6JB0A1114014